While listed as a breed, frizzling is a genetic modification that can be easily introduced into any population of chickens. It causes each feather
to curl back toward the bird's head instead of lying naturally pointed toward the
tail. However, there are certain breeds of chickens which display this characteristic
more often such as: Cochin, Plymouth Rock, Japanese and Polish. The mutation is the
result of a single gene. For more information on the mutation please look to the online
Mendelian Inheritance in Animals.
Chicken Breeds and Varieties (A2880), John L. Skinner, University of Wisconsin-Madison
Haggarty, Laura. "Frizzles: One of Our Odd "Breeds" by Laura Haggarty from the October/November,
2010 Issue of Backyard Poultry | Backyard Poultry Magazine." Backyard Poultry Magazine. Swift Communications Inc., 07 Feb. 2013. Web. 29 June 2015.